The three equations of motion, also known as the suvat equations, are used to describe the motion of an object with constant acceleration. They relate the following five variables:

* s - displacement (m)

* u - initial velocity (m/s)

* v - final velocity (m/s)

* a - acceleration (m/s²)

* t - time (s)

Here are the three equations:

1. v = u + at

* This equation relates final velocity (v) to initial velocity (u), acceleration (a) and time (t).

2. s = ut + ½at²

* This equation relates displacement (s) to initial velocity (u), acceleration (a) and time (t).

3. v² = u² + 2as

* This equation relates final velocity (v) to initial velocity (u), acceleration (a) and displacement (s).

Important Notes:

* These equations apply only to motion with constant acceleration.

* The equations are vector equations, meaning they can be applied in multiple dimensions.

* The equations are derived from the definitions of velocity and acceleration, and assume a constant acceleration.

These equations are fundamental in classical mechanics and are widely used in physics and engineering to solve problems involving motion.